F-35 makes first test flights with external weapons

The F-35, the military's next-generation fighter jet, has begun its first flight tests carrying external missiles at Edwards Air Force Base in the Mojave Desert.

The stealthy, supersonic fighter, built by Lockheed Martin Corp., has been undergoing tests since its first flight in late 2006.

The F-35, known as the Joint Strike Fighter, will be used by the Navy, Marines and Air Force. Three versions of the F-35 are being built - one that can operate off aircraft carriers, one capable of short takeoffs and vertical landings, and a conventional fighter jet.

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